[thirdparty/gcc.git] / gcc / testsuite / gcc.dg / recip_sqrt_mult_4.c

/* { dg-do compile } */
/* { dg-options "-Ofast -fdump-tree-recip" } */
/* { dg-additional-options "-fcompare-debug" { target { ! powerpc-ibm-aix* } } } */

/* The main path doesn't have any multiplications.
   Avoid introducing them in the recip pass.  */

double res, res2, tmp;
void
foo (double a, double b, int c, int d)
{
  tmp = 1.0 / __builtin_sqrt (a);
  if (c)
    res = tmp * tmp;

  if (d)
    res2 = a * tmp;
}

/* { dg-final { scan-tree-dump-not "Optimizing reciprocal sqrt multiplications" "recip" } } */
/* { dg-final { scan-tree-dump-not "Replacing squaring multiplication" "recip" } } */
/* { dg-final { scan-tree-dump-not "Replacing original division" "recip" } } */
Commit	Line	Data
24c49431	1	/* { dg-do compile } */
9638e3ef DE	2	/* { dg-options "-Ofast -fdump-tree-recip" } */
9638e3ef DE	3	/* { dg-additional-options "-fcompare-debug" { target { ! powerpc-ibm-aix* } } } */
24c49431 KT	4
	5	/* The main path doesn't have any multiplications.
	6	Avoid introducing them in the recip pass. */
	7
	8	double res, res2, tmp;
	9	void
	10	foo (double a, double b, int c, int d)
	11	{
	12	tmp = 1.0 / __builtin_sqrt (a);
	13	if (c)
	14	res = tmp * tmp;
	15
	16	if (d)
	17	res2 = a * tmp;
	18	}
	19
	20	/* { dg-final { scan-tree-dump-not "Optimizing reciprocal sqrt multiplications" "recip" } } */
	21	/* { dg-final { scan-tree-dump-not "Replacing squaring multiplication" "recip" } } */
	22	/* { dg-final { scan-tree-dump-not "Replacing original division" "recip" } } */